Process for preparation of 7-[α-Amino...

Details Process for preparation of 7-[α-Amino... Process for preparation of 7-[α-Amino...

2007-06-12

2007-06-12

Berch, Mark L. (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C560S039000

Reexamination Certificate

active

10801443

ABSTRACT:
A process for preparation of 7-[D-α-amino-α-(4-hydroxyphenyl)acetamido]-3-(1-propen-1-yl)-3-cephem-4-carboxylic acid viz. Cefprozil of formula (I) in high purity, substantially free of impurities,which comprises preparation of mixed acid anhydride by selecting the sequence and temperature of addition of the reagents and its subsequent condensation with a protected 7-APCA; followed by hydrolysis, isolation and purification to give Cefprozil of formula (I) in the form of a monohydrate.

REFERENCES:
patent: 3249622 (1966-05-01), Herrling et al.
patent: 3499909 (1970-03-01), Weissenburger et al.
patent: 3575970 (1971-04-01), Weissenburger et al.
patent: 3595855 (1971-07-01), Robinson et al.
patent: 3654266 (1972-04-01), Robinson et al.
patent: 3970651 (1976-07-01), Kaplan et al.
patent: 3985741 (1976-10-01), Crast, Jr. et al.
patent: 3985747 (1976-10-01), Kaplan et al.
patent: 4218474 (1980-08-01), Barnish et al.
patent: 4520022 (1985-05-01), Hoshi et al.
patent: 4694079 (1987-09-01), Crast, Jr.
patent: 4699979 (1987-10-01), Hoshi et al.
patent: 6903211 (2005-06-01), Deshpande et al.
patent: 959853 (1964-03-01), None
patent: 1008468 (1965-10-01), None
patent: 1 339 605 (1973-12-01), None
patent: 1 532 682 (1978-11-01), None
patent: 98/04732 (1998-02-01), None
patent: 03/011871 (2003-02-01), None

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